88 



THE MUSCLES. 



(3) Muscles of the second finger, which serves the purposes of a 

 thumb. 



70. M. flexor digiti II longus s. sublimis (Fig. 77 /2). 



Dug&s, sous-carpo-plialangettien de 1'index, n. 133. 



This is a flat muscle, which arises for the most part by fleshy 

 fibres from the hinder free border of the aponeurosis palmaris, also 



Fig. 78. 



Muscles of hand of Rana esculenta, volar 

 surface, larger than nature. 



A Aponeurosis palmaris. 



065 M. abductor dig. V primus. 



065' M. abductor dig. secundus. 



ac MM. anconaei. 



adp M. adductor polh'cis. 



ap M. abductor polh'cis. 



cc M. extensor digitorum communis. 



#5 M. extens. dig. commun. brevis. 



/2 M. flexor dig. II longus. 



/3 M. flexor dig. Ill longxis. 



/4 M. flexor dig. IV longus. 



/5 M. flexor dig. V longus. 



/&2 M. flexor dig. II brevis. 



/Z>3 and/63' MM. flexores dig. Ill breves. 



/Z>4 and/*4' MM. flexores dig. IV breves. 



_/&5 M. flexor dig. V primus. 



fd M. flexor digitorum communia. 



<> M. opponens. 



jib M. palmaris brevis. 



I First finger, rudimentary thumb. 



II Second finger, functions as thumb. 

 III-V Third to fifth fingers. 



ael2 



Second layer of muscles on volar surface of 

 hand of Rana esculenta, larger than nature. 



M. abductor dig. V primus. 



M. abductor dig. V secundus. 



M. adductor dig. II. 



M. adductor pollicis. 



M. abductor pollicis. 



M. extensor carpi. 



M. flexor dig. II brevis. 



M. flexor dig. II tertius. 



MM. flexores proprii phalangum. 



MM. interossei rolares. 



o M. opponens dig. II. 

 ' M. opponens dig. V. 

 t,t' MM. transversi metacarpi. 

 I-V as in Fig. 77. 



065 



065' 



auz 



ad.p 



ap 



ec 



/&2 

 fl>2' 

 fP 



''.3 



by a smaller part from the palmar surface of the os capilalo- 

 Tiamatum. It quickly passes into a thin long tendon which is 

 inserted into the terminal phalanx of the thumb (second finger). 



